This flashlight unit attaches via a super convenient quick-detach bracket right on to your tactical rail and is operated by either the rubber sealed switch on the rear or the tethered wire button. Unlike other models out there, this wire is not a simple plug but a screw-on plug which is both tougher and far more secure then simply push plugs.
This illuminator has two different modes, one basic white light illumination and an infra-red strobe mode. The QD bracket is fine-tune adjustable to fit your specific rail just right. Although this will technically fit almost any rail at least 30mm long, you will note the length and weight of this torch as being on the size level appropriate for use with rifles and carbines.
This unit also comes with a set of small stick-on Velcro pads to make attaching that wire tab button a little easier for you.